Author: Alseg
Date: 2018-07-16 18:57
Attachment: Internal caliper small jpg.jpg (14k)
Attachment: tosca variety aug 2014 2.jpg (199k)
here you can see two types of internal spring calipers. One is digital from Germany and very expensive, the other is available from Japan (Mititoyo and others), also costly, and others are Taiwanese, which are decent and lesss expensive. It allows you to ascertain whether the bore is distorted elliptically.
These measure from a set zero, so you need a standard, as seen in the second photo (the ring with a brass finish)
Former creator of CUSTOM CLARINET TUNING BARRELS by DR. ALLAN SEGAL
-Where the Sound Matters Most(tm)-
Post Edited (2018-07-16 19:04)
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